US7850759B2 - Metal extraction from various chalcogenide minerals through interaction with separate electric fields and magnetic fields supplied by electromagnetic energy - Google Patents
Metal extraction from various chalcogenide minerals through interaction with separate electric fields and magnetic fields supplied by electromagnetic energy Download PDFInfo
- Publication number
- US7850759B2 US7850759B2 US12/335,398 US33539808A US7850759B2 US 7850759 B2 US7850759 B2 US 7850759B2 US 33539808 A US33539808 A US 33539808A US 7850759 B2 US7850759 B2 US 7850759B2
- Authority
- US
- United States
- Prior art keywords
- mineral
- microwave
- process according
- chalcogenide
- ore
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 46
- 239000011707 mineral Substances 0.000 title claims abstract description 46
- 150000004770 chalcogenides Chemical class 0.000 title claims abstract description 16
- 230000005684 electric field Effects 0.000 title claims abstract 4
- 229910052751 metal Inorganic materials 0.000 title abstract description 22
- 239000002184 metal Substances 0.000 title abstract description 21
- 238000000605 extraction Methods 0.000 title abstract description 10
- 230000003993 interaction Effects 0.000 title description 3
- 238000000034 method Methods 0.000 claims abstract description 24
- 230000008569 process Effects 0.000 claims abstract description 19
- 239000002253 acid Substances 0.000 claims abstract description 9
- 239000010931 gold Substances 0.000 claims description 23
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical group [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 19
- 229910052737 gold Inorganic materials 0.000 claims description 19
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 7
- 230000005855 radiation Effects 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 239000004332 silver Substances 0.000 claims description 6
- 230000005670 electromagnetic radiation Effects 0.000 claims description 5
- 229910000510 noble metal Inorganic materials 0.000 claims description 5
- 229910052964 arsenopyrite Inorganic materials 0.000 claims description 4
- 238000007323 disproportionation reaction Methods 0.000 claims description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
- MJLGNAGLHAQFHV-UHFFFAOYSA-N arsenopyrite Chemical compound [S-2].[Fe+3].[As-] MJLGNAGLHAQFHV-UHFFFAOYSA-N 0.000 claims description 3
- QZPSXPBJTPJTSZ-UHFFFAOYSA-N aqua regia Chemical compound Cl.O[N+]([O-])=O QZPSXPBJTPJTSZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 230000001376 precipitating effect Effects 0.000 claims 1
- 238000011282 treatment Methods 0.000 abstract description 21
- 150000002739 metals Chemical class 0.000 abstract description 5
- 238000005191 phase separation Methods 0.000 abstract description 2
- 150000004760 silicates Chemical class 0.000 abstract 1
- 239000000463 material Substances 0.000 description 18
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 10
- 238000001000 micrograph Methods 0.000 description 7
- 238000002441 X-ray diffraction Methods 0.000 description 6
- 238000002386 leaching Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000001878 scanning electron micrograph Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 102100021867 Natural resistance-associated macrophage protein 2 Human genes 0.000 description 1
- 101710171645 Natural resistance-associated macrophage protein 2 Proteins 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004125 X-ray microanalysis Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- NFMAZVUSKIJEIH-UHFFFAOYSA-N bis(sulfanylidene)iron Chemical compound S=[Fe]=S NFMAZVUSKIJEIH-UHFFFAOYSA-N 0.000 description 1
- KXZJHVJKXJLBKO-UHFFFAOYSA-N chembl1408157 Chemical compound N=1C2=CC=CC=C2C(C(=O)O)=CC=1C1=CC=C(O)C=C1 KXZJHVJKXJLBKO-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009770 conventional sintering Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- IQDXNHZDRQHKEF-UHFFFAOYSA-N dialuminum;dicalcium;dioxido(oxo)silane Chemical compound [Al+3].[Al+3].[Ca+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O.[O-][Si]([O-])=O IQDXNHZDRQHKEF-UHFFFAOYSA-N 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 208000037338 fibronectinemic type Ehlers-Danlos syndrome Diseases 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000009768 microwave sintering Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 229910052952 pyrrhotite Inorganic materials 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 229910052604 silicate mineral Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 108700024661 strong silver Proteins 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B11/00—Obtaining noble metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B11/00—Obtaining noble metals
- C22B11/04—Obtaining noble metals by wet processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B4/00—Electrothermal treatment of ores or metallurgical products for obtaining metals or alloys
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Definitions
- Microwave energy may be useful in several ways in enhancing the extraction and recovery of trace metals from its ores.
- the basis of exploiting microwaves for extraction lies in the fact that microwaves are more readily absorbed by some minerals than others, leading to a preferential heating of such minerals. This preferential heating may result in different effects to those obtained by application of conventional thermal energy.
- Mineralogy can be expected to play an important part in the application of microwave energy to the treatment of gold ores because some minerals absorb microwave energy and become hot, and may decompose or react with oxygen or other substances. Other minerals however are ‘transparent’ to microwave energy and hence unaffected.
- FIG. 2 is a diagrammatic representation of a single mode microwave cavity.
- FIG. 8 is a micrograph of a mineral sample (DMR-3) treated for sixty seconds at H field maximum.
- FIG. 9 is a micrograph of a portion of the sample shown in FIG. 8 at A.
- FIG. 1 is a diagrammatic representation of conventional multimode microwave energy in a cavity 14 designed for microwave exposure of any material objects placed therein.
- the microwaves 12 are produced by a generator (not shown) and conducted to the cavity through a waveguide 16 .
- the microwaves 12 are shown within the cavity as a plurality of sine waves of various different frequencies.
- the system is multimode because tens to hundreds of different modes are present. Because the waves are not at all coherent, the E (electrical) and H (magnetic) fields of the various waves are evenly spread through the cavity and any material placed therein will receive equal exposure to both E and H fields.
- a plot 22 of the E field intensity and a plot 24 of the H field intensity are plotted above and in registration with the cavity 14 demonstrating the relationship of the alternating electrical and magnetic fields with the positions (a) and (b).
- An advantage to a single mode microwave device is the ability to treat the sample separately with a very intense E filed or a very intense H field.
- a potential problem is that of treating large quantities of material.
- other electromagnetic radiation other than microwaves can be used to expose material to separate and intense H and E fields.
- microwaves are convenient because of the physical size of the standing H and E fields. Use of radiation with a much shorter wavelength would result in H and E fields of impractically small sizes.
- multimode microwaves can be considered largely a source of heat
- multimode energy can be used in novel ways to extract the gold or silver metal from the treated ore by means of a microwave-hydrothermal reactor.
- This reactor contains acid, either aqua regia (hydrochloric plus nitric acids) for gold extraction or nitric acid for silver extraction and can advantageously be used in place of heap leaching or other similar processes to extract metal from ground or otherwise pretreated ore.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Food Science & Technology (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Furnace Details (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/335,398 US7850759B2 (en) | 2006-06-14 | 2008-12-15 | Metal extraction from various chalcogenide minerals through interaction with separate electric fields and magnetic fields supplied by electromagnetic energy |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US80480806P | 2006-06-14 | 2006-06-14 | |
| PCT/US2007/071251 WO2008147420A1 (fr) | 2006-06-14 | 2007-06-14 | Extraction de métaux à partir de divers minéraux de la classe des chalcogénures par interaction avec de l'énergie micro-onde |
| US12/335,398 US7850759B2 (en) | 2006-06-14 | 2008-12-15 | Metal extraction from various chalcogenide minerals through interaction with separate electric fields and magnetic fields supplied by electromagnetic energy |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2007/071251 Continuation-In-Part WO2008147420A1 (fr) | 2006-06-14 | 2007-06-14 | Extraction de métaux à partir de divers minéraux de la classe des chalcogénures par interaction avec de l'énergie micro-onde |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| US20090183597A1 US20090183597A1 (en) | 2009-07-23 |
| US7850759B2 true US7850759B2 (en) | 2010-12-14 |
Family
ID=38865008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US12/335,398 Expired - Fee Related US7850759B2 (en) | 2006-06-14 | 2008-12-15 | Metal extraction from various chalcogenide minerals through interaction with separate electric fields and magnetic fields supplied by electromagnetic energy |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US7850759B2 (fr) |
| WO (1) | WO2008147420A1 (fr) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014074985A1 (fr) * | 2012-11-12 | 2014-05-15 | Flsmidth A/S | Procédé et traitement pour la lixiviation améliorée de minéraux sulfureux de cuivre contenant de la chalcopyrite |
| ES2535556A1 (es) * | 2015-02-09 | 2015-05-12 | Innceinnmat, S.L. | Procedimiento selectivo de extracción de metales de un mineral bruto, dispositivo y sistema para su realización |
| US10221465B2 (en) | 2015-02-19 | 2019-03-05 | Elwha Llc | Material processing systems and methods |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2457493B (en) * | 2008-02-15 | 2013-03-06 | E2V Tech Uk Ltd | Apparatus and method for comminution of mineral ore |
| US9102993B1 (en) * | 2009-06-18 | 2015-08-11 | Albert Lovshin | Mineral processing |
| RU2014120230A (ru) * | 2011-11-08 | 2015-12-20 | Текнолоджикал Ресорсез Пти Лимитед | Способ обработки рудного материала |
| CN111394574A (zh) * | 2012-11-15 | 2020-07-10 | 技术资源有限公司 | 堆浸 |
| WO2015061879A1 (fr) * | 2013-10-28 | 2015-05-07 | Edward Melcarek | Procédé et appareil pour augmenter la porosité d'un minerai métallifère |
| CA3079989C (fr) | 2017-12-04 | 2023-03-28 | Goldcorp Inc. | Procede a faible energie pour extraction de metaux |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5393320A (en) * | 1993-03-26 | 1995-02-28 | Rmg Services Pty. Ltd. | Leaching process for nickel cobalt and manganese ores |
| US6350420B1 (en) * | 1999-10-15 | 2002-02-26 | Bhp Minerals International, Inc. | Resin-in-pulp method for recovery of nickel and cobalt |
| US6365885B1 (en) * | 1999-10-18 | 2002-04-02 | The Penn State Research Foundation | Microwave processing in pure H fields and pure E fields |
| US20030029944A1 (en) | 2000-03-09 | 2003-02-13 | Darrin Flinn | Method and apparatus for facilitating recovery of desired materials from ore |
| WO2003031664A1 (fr) | 2001-10-12 | 2003-04-17 | Rmg Services Pty Ltd | Traitement de composes multiples de titane |
| WO2003046231A1 (fr) | 2001-11-23 | 2003-06-05 | Golden Wave Resources Inc. | Metallurgie pyrolytique electromagnetique |
| US20040187643A1 (en) | 2001-09-14 | 2004-09-30 | Alexander Beckmann | Method for obtaining cobalt and nickel from ores and ore concentrates |
| US20040258591A1 (en) * | 2002-02-22 | 2004-12-23 | Birken Stephen M. | Method and apparatus for separating metal values |
-
2007
- 2007-06-14 WO PCT/US2007/071251 patent/WO2008147420A1/fr not_active Ceased
-
2008
- 2008-12-15 US US12/335,398 patent/US7850759B2/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5393320A (en) * | 1993-03-26 | 1995-02-28 | Rmg Services Pty. Ltd. | Leaching process for nickel cobalt and manganese ores |
| US6350420B1 (en) * | 1999-10-15 | 2002-02-26 | Bhp Minerals International, Inc. | Resin-in-pulp method for recovery of nickel and cobalt |
| US6365885B1 (en) * | 1999-10-18 | 2002-04-02 | The Penn State Research Foundation | Microwave processing in pure H fields and pure E fields |
| US20030029944A1 (en) | 2000-03-09 | 2003-02-13 | Darrin Flinn | Method and apparatus for facilitating recovery of desired materials from ore |
| US20040187643A1 (en) | 2001-09-14 | 2004-09-30 | Alexander Beckmann | Method for obtaining cobalt and nickel from ores and ore concentrates |
| WO2003031664A1 (fr) | 2001-10-12 | 2003-04-17 | Rmg Services Pty Ltd | Traitement de composes multiples de titane |
| WO2003046231A1 (fr) | 2001-11-23 | 2003-06-05 | Golden Wave Resources Inc. | Metallurgie pyrolytique electromagnetique |
| US20040258591A1 (en) * | 2002-02-22 | 2004-12-23 | Birken Stephen M. | Method and apparatus for separating metal values |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014074985A1 (fr) * | 2012-11-12 | 2014-05-15 | Flsmidth A/S | Procédé et traitement pour la lixiviation améliorée de minéraux sulfureux de cuivre contenant de la chalcopyrite |
| ES2535556A1 (es) * | 2015-02-09 | 2015-05-12 | Innceinnmat, S.L. | Procedimiento selectivo de extracción de metales de un mineral bruto, dispositivo y sistema para su realización |
| US10221465B2 (en) | 2015-02-19 | 2019-03-05 | Elwha Llc | Material processing systems and methods |
Also Published As
| Publication number | Publication date |
|---|---|
| US20090183597A1 (en) | 2009-07-23 |
| WO2008147420A1 (fr) | 2008-12-04 |
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Owner name: AMERICAN BIOTECH LABS, LLC, UTAH Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ROY, RUSTUM;MOELLER, WILLIAM;SIGNING DATES FROM 20090304 TO 20090309;REEL/FRAME:022430/0781 Owner name: AMERICAN BIOTECH LABS, LLC, UTAH Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:ROY, RUSTUM;MOELLER, WILLIAM;REEL/FRAME:022430/0781;SIGNING DATES FROM 20090304 TO 20090309 |
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| REMI | Maintenance fee reminder mailed | ||
| LAPS | Lapse for failure to pay maintenance fees | ||
| STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
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| FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20141214 |